Deat Boot on sm-g530m?

Hello , I had a problem trying to repair the IMEI of an SM- G350M ( Grand Prime) and the boot was damaged .
The cell does not start and the PC reonoce only as " % Qcomdevice90080 %."
What can I do?
I can not enter download mode , or recovery .
I octopus , but no JTAG .